[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 19 21:02:28 EAT 2006


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net

If you have any comments please contact Philip Smith <pfs at cisco.com>.

Routing Table Report   04:00 +10GMT Sat 20 May, 2006

Analysis Summary
----------------

BGP routing table entries examined:                              188610
    Prefixes after maximum aggregation:                          104284
    Unique aggregates announced to Internet:                      92582
Total ASes present in the Internet Routing Table:                 22230
Origin-only ASes present in the Internet Routing Table:           19345
Origin ASes announcing only one prefix:                            9245
Transit ASes present in the Internet Routing Table:                2885
Transit-only ASes present in the Internet Routing Table:             64
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      20
    Max AS path prepend of ASN (34527)                               16
Prefixes from unregistered ASNs in the Routing Table:                 8
    Unregistered ASNs in the Routing Table:                           6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             10
Number of addresses announced to Internet:                   1538347176
    Equivalent to 91 /8s, 177 /16s and 80 /24s
    Percentage of available address space announced:               41.5
    Percentage of allocated address space announced:               60.0
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       93291

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                    39800
    Total APNIC prefixes after maximum aggregation:               16690
Prefixes being announced from the APNIC address blocks:           37504
    Unique aggregates announced from the APNIC address blocks:    18371
APNIC Region origin ASes present in the Internet Routing Table:    2561
APNIC Region origin ASes announcing only one prefix:                733
APNIC Region transit ASes present in the Internet Routing Table:    386
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              225925856
    Equivalent to 13 /8s, 119 /16s and 90 /24s
    Percentage of available APNIC address space announced:         70.6

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911
APNIC Address Blocks   58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
                       210/7, 218/7, 220/7 and 222/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     97594
    Total ARIN prefixes after maximum aggregation:                57782
Prefixes being announced from the ARIN address blocks:            71589
    Unique aggregates announced from the ARIN address blocks:     26499
ARIN Region origin ASes present in the Internet Routing Table:    10721
ARIN Region origin ASes announcing only one prefix:                4019
ARIN Region transit ASes present in the Internet Routing Table:     988
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               292645120
    Equivalent to 17 /8s, 113 /16s and 105 /24s
    Percentage of available ARIN address space announced:          75.8

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863
ARIN Address Blocks    24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     37713
    Total RIPE prefixes after maximum aggregation:                25238
Prefixes being announced from the RIPE address blocks:            34722
    Unique aggregates announced from the RIPE address blocks:     23499
RIPE Region origin ASes present in the Internet Routing Table:     8039
RIPE Region origin ASes announcing only one prefix:                4217
RIPE Region transit ASes present in the Internet Routing Table:    1319
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               249979076
    Equivalent to 14 /8s, 230 /16s and 96 /24s
    Percentage of available RIPE address space announced:          78.4

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks    62/8, 80/5, 88/6, 193/8, 194/7, 212/7
                       and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   11361
    Total LACNIC prefixes after maximum aggregation:               3680
Prefixes being announced from the LACNIC address blocks:           9450
    Unique aggregates announced from the LACNIC address blocks:    5513
LACNIC Region origin ASes present in the Internet Routing Table:    689
LACNIC Region origin ASes announcing only one prefix:               227
LACNIC Region transit ASes present in the Internet Routing Table:   131
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              26970112
    Equivalent to 1 /8s, 155 /16s and 136 /24s
    Percentage of available LACNIC address space announced:        40.2

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  189/8, 190/8, 200/7

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                   2134
    Total AfriNIC prefixes after maximum aggregation:               894
Prefixes being announced from the AfriNIC address blocks:          1472
    Unique aggregates announced from the AfriNIC address blocks:    970
AfriNIC Region origin ASes present in the Internet Routing Table:   156
AfriNIC Region origin ASes announcing only one prefix:               49
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.4
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC addresses announced to Internet:              4080640
    Equivalent to 0 /8s, 62 /16s and 68 /24s
    Percentage of available AfriNIC address space announced:       12.2

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134     1146       7080         217   CHINANET-BACKBONE
 9583      903        109          16   Sify Limited
 4755      897        259          72   Videsh Sanchar Nigam Ltd. Aut
 4766      685       4435         304   Korea Telecom (KIX)
 1221      615       1556         471   Telstra Pty Ltd
 9498      557        211          66   BHARTI BT INTERNET LTD.
 7545      529        124          70   TPG Internet Pty Ltd
17488      518         32           9   Hathway IP Over Cable Interne
17676      485       7029         109   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
 4802      380         80         173   Wantree Development
18101      359         85          23   Reliance Infocom Ltd Internet
17557      358         28         165   Pakistan Telecom
17849      351         22         113   Telecommunications Technology
17974      338        135          19   PT TELEKOMUNIKASI INDONESIA
 2907      336       1749         312   SINET Japan
 9929      326        221          57   China Netcom Corp.
 7474      299        211         229   SingTel Optus Pty Ltd
 9800      273        410          67   CHINA UNICOM
 9837      266         78         159   Powertel Ltd

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1505       6225         965   AT&T WorldNet Services
 4323     1293        734         254   Time Warner Telecom
 6197     1006        622         472   BellSouth Network Solutions, 
  721      994      21945         303   DLA Systems Automation Center
  174      953       5786         897   Cogent Communications
19029      949        151         109   New Edge Networks 
18566      939        272           8   Covad Communications 
  701      932       6780         769   UUNET Technologies, Inc. 
 2386      877        522         675   AT&T Data Communications Serv
 1239      845       2805         599   Sprint 
  209      708       3689         553   Qwest 
19262      702       2101         184   Verizon Global Networks 
20115      694        609         375   Charter Communications 
22773      663       1745          45   Cox Communications, Inc.
 7011      635        218         413   Citizens Utilities 
11492      621         87          21   Cable One 
  852      582       1084         383   Telus Advanced Communications
 6478      571       1523         337   AT&T Worldnet Services 
19916      563         49          54   OLM LLC 
  855      545        244          64   Canadian Research Network 

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      578       1952         456   UUNET - Commercial IP service
 3301      307       1071         293   TeliaNet Sweden
 3352      297       1644          30   Ibernet, Internet Access Netw
 8220      294        472         267   COLT Telecommunications
 3320      287       3989         240   Deutsche Telekom AG
  680      245       2025         242   DFN-IP service G-WiN
 3246      235        504         225   Song Networks
 6746      232         89         208   Dynamic Network Technologies,
 8708      219        276         202   Romania Data Systems S.A.
24863      212         42          10   LINKdotNET AS number
 8551      202        198          24   Bezeq International
 3215      199       1664          94   France Telecom Transpac
 3269      198       2134          72   TELECOM ITALIA
 1257      190        740         165   SWIPnet Swedish IP Network
30890      183         16          68   SC Kappa Invexim SRL
 8866      179         37          15   Bulgarian Telecommunication C
  786      171       1778         171   The JANET IP Service
 5400      171        348         140   BT Ignite European Backbone
 6830      169        765          35   UPC Distribution Services
 3300      167        171          96   AUCS Communications Services 

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      706       1083         226   UniNet S.A. de C.V. 
22047      417        158          11   VTR PUNTO NET S.A. 
16814      330         20           8   NSS, S.A. 
11172      324        110          87   Servicios Alestra S.A de C.V 
 6147      262        126          22   Telefonica Del Peru 
14117      205         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      169         79          24   Telecom Argentina Stet-France
11556      132         80           4   Cable-Wireless Panama 
21826      132         16          23   INTERCABLE 
 6503      129        149          77   AVANTEL, S.A. 
19169      129          8          21   Telconet 
14259      116         10          12   GTD Internet S.A. 
23216      113         21           9   RAMtelecom Telecomunicaciones
 6505      109         88          79   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
 5639      103         12           9   Telecommunications Services o
19429      103         58          44   E.T.B. 
18822       98          7           9   TELEFONICA MANQUEHUE 
14571       97         25           3   Internet Group do Brasil 

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      282        803         233   The Internet Solution 
 8452      168         60           7   TEDATA
 6713      137        135          11   Itissalat Al-MAGHRIB
 2018      130        314         105   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      117         50           7   RAYA Telecom - Egypt
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
20928       58         16           2   Noor Advanced Technologies AS
15475       53         84           4   Nile Online
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       30          7          20   AS Number for Telecom Algeria
12455       27          6           3   Jambonet Autonomous system
23889       26          8          11   MAURITIUS TELECOM
 8524       24          1           4   AUCEGYPT Autonomous System
16637       24         14          22   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
 2561       19          6           2   Egyptian Universities Network
21491       19         17           2   UTL On-line is RF broadband I

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 4323      1293        1039      Time Warner Telecom
18566       939         931      Covad Communications 
 4134      1146         929      CHINANET-BACKBONE
 9583       903         887      Sify Limited
19029       949         840      New Edge Networks 
 4755       897         825      Videsh Sanchar Nigam Ltd. Aut
  721       994         691      DLA Systems Automation Center
22773       663         618      Cox Communications, Inc.
11492       621         600      Cable One 
 6197      1006         534      BellSouth Network Solutions, 
19262       702         518      Verizon Global Networks 
19916       563         509      OLM LLC 
17488       518         509      Hathway IP Over Cable Interne
 5668       525         502      CenturyTel Internet Holdings,
 9498       557         491      BHARTI BT INTERNET LTD.
  855       545         481      Canadian Research Network 
 8151       706         480      UniNet S.A. de C.V. 
 7545       529         459      TPG Internet Pty Ltd
 3602       539         429      Sprint Canada, Inc. 
22047       417         406      VTR PUNTO NET S.A. 

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
65289   PRIVATE       148.164.1.0/24        4755       Videsh Sanchar Nigam
65128   PRIVATE       193.110.50.0/24      24652       Juniper Networks, Eu
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com
64515   PRIVATE       203.126.13.0/25       7610       SINGAPORE ADVANCE RE
64515   PRIVATE       203.126.13.128/26     7610       SINGAPORE ADVANCE RE
65280   PRIVATE       203.197.161.0/24      4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.14.0/24       4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.21.0/24       4755       Videsh Sanchar Nigam

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
183.206.196.0/24      2188     FR-RENATER-ASTER
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.172.0.0/19         721     DLA Systems Automation Center

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:18       /9:9       /10:9       /11:27      /12:91      
/13:200     /14:361     /15:703     /16:8809    /17:3213    /18:5312    
/19:11653   /20:13118   /21:11365   /22:14645   /23:15812   /24:102224  
/25:379     /26:250     /27:192     /28:64      /29:70      /30:50      
/31:0       /32:36      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
18566      922           939      Covad Communications 
19029      880           949      New Edge Networks 
 6197      795          1006      BellSouth Network Solutions, 
 7018      793          1505      AT&T WorldNet Services
 9583      732           903      Sify Limited
 4323      637          1293      Time Warner Telecom
11492      612           621      Cable One 
 2386      605           877      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      544           635      Citizens Utilities 
 4766      495           685      Korea Telecom (KIX)
  855      426           545      Canadian Research Network 
 5668      408           525      CenturyTel Internet Holdings,
15270      396           427      PaeTec.net -a division of Pae
 1239      387           845      Sprint 
  702      359           578      UUNET - Commercial IP service
 6517      357           388      Yipes Communications, Inc. 
 6198      356           508      BellSouth Network Solutions, 
17849      351           351      Telecommunications Technology
 8151      349           706      UniNet S.A. de C.V. 

Number of /24s announced per /8 block (Global)
----------------------------------------------

   4:8         8:42       12:1630     13:1        15:14       16:3      
  17:3        18:4        20:43       24:737      25:1        30:2      
  32:58       38:216      40:54       41:3        44:3        47:6      
  52:4        55:1        56:3        57:25       58:153      59:189    
  60:181      61:861      62:759      63:1931     64:3185     65:2259   
  66:3011     67:609      68:675      69:1512     70:361      71:85     
  72:713      73:23       74:36       80:775      81:646      82:600    
  83:398      84:389      85:533      86:395      87:353      88:90     
  89:196     124:279     125:407     128:154     129:190     130:109    
 131:317     132:33      133:8       134:159     135:46      136:178    
 137:75      138:207     139:68      140:468     141:136     142:380    
 143:165     144:224     145:39      146:330     147:136     148:331    
 149:186     150:114     151:90      152:68      153:107     154:6      
 155:202     156:100     157:149     158:166     159:168     160:87     
 161:76      162:247     163:147     164:180     165:203     166:166    
 167:242     168:489     169:128     170:335     171:14      183:1      
 190:72      192:5761    193:3365    194:2619    195:1836    196:846    
 198:3911    199:3217    200:4430    201:945     202:6636    203:6871   
 204:3894    205:2072    206:2410    207:2879    208:2088    209:3782   
 210:1957    211:691     212:1231    213:1474    214:363     215:41     
 216:4144    217:1145    218:273     219:199     220:659     221:362    
 222:162    

End of report



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